aura: Add X11 host window management.

ash/shell.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/shell.h"
 
 #include <algorithm>
 #include <string>
 
 #include "ash/accelerators/focus_manager_factory.h"
 #include "ash/ash_switches.h"
 #include "ash/desktop_background/desktop_background_controller.h"
 #include "ash/desktop_background/desktop_background_resources.h"
 #include "ash/desktop_background/desktop_background_view.h"
 #include "ash/drag_drop/drag_drop_controller.h"
 #include "ash/focus_cycler.h"
 #include "ash/high_contrast/high_contrast_controller.h"
+#include "ash/hostwm/host_window_manager.h"
 #include "ash/launcher/launcher.h"
 #include "ash/magnifier/magnification_controller.h"
 #include "ash/display/display_controller.h"
 #include "ash/display/mouse_cursor_event_filter.h"
 #include "ash/display/multi_display_manager.h"
 #include "ash/display/secondary_display_view.h"
 #include "ash/root_window_controller.h"
 #include "ash/screen_ash.h"
 #include "ash/shell_context_menu.h"
 #include "ash/shell_delegate.h"
@@ skipping 66 matching lines @@
 #include "ash/accelerators/accelerator_controller.h"
 #include "ash/accelerators/accelerator_filter.h"
 #include "ash/accelerators/nested_dispatcher_controller.h"
 #endif
 
 #if defined(OS_CHROMEOS)
 #include "chromeos/display/output_configurator.h"
 #include "ui/aura/dispatcher_linux.h"
 #endif  // defined(OS_CHROMEOS)
 
+#if defined(USE_X11)
+#include "ui/aura/hostwm/host_window_manager_x11.h"
+#endif
+
 namespace ash {
 
 namespace {
 
 using aura::Window;
 using views::Widget;
 
 // This dummy class is used for shell unit tests. We dont have chrome delegate
 // in these tests.
 class DummyUserWallpaperDelegate : public UserWallpaperDelegate {
@@ skipping 70 matching lines @@
   ui_controls::InstallUIControlsAura(internal::CreateUIControls());
 #if defined(OS_CHROMEOS)
   // OutputConfigurator needs to get events regarding added/removed outputs.
   static_cast<aura::DispatcherLinux*>(
       aura::Env::GetInstance()->GetDispatcher())->AddDispatcherForRootWindow(
           output_configurator());
 #endif  // defined(OS_CHROMEOS)
 }
 
 Shell::~Shell() {
+#if defined(USE_X11)
+  x11_host_window_manager_.reset();
+#endif
+
+  // This holds a pointer to the host_window_manager_ that we own.
+  host_window_manager_.reset();
+
   views::FocusManagerFactory::Install(NULL);
 
   // Remove the focus from any window. This will prevent overhead and side
   // effects (e.g. crashes) from changing focus during shutdown.
   // See bug crbug.com/134502.
   if (active_root_window_)
     active_root_window_->GetFocusManager()->SetFocusedWindow(NULL, NULL);
 
   aura::Env::GetInstance()->cursor_manager()->set_delegate(NULL);
 
@@ skipping 146 matching lines @@
 std::vector<aura::Window*> Shell::GetAllContainers(int container_id) {
   // TODO(oshima): Support multiple root windows.
   std::vector<aura::Window*> containers;
   aura::Window* container = GetPrimaryRootWindow()->GetChildById(container_id);
   if (container)
     containers.push_back(container);
   return containers;
 }
 
 void Shell::Init() {
+  if (CommandLine::ForCurrentProcess()->HasSwitch(
+        switches::kAuraEnableHostWindowManagement)) {
+    host_window_manager_.reset(new internal::HostWindowManager);
+#if defined(USE_X11)
+    x11_host_window_manager_.reset(new aura::HostWindowManagerX11(
+        host_window_manager_.get()));
+#endif
+  }
+
   // Install the custom factory first so that views::FocusManagers for Tray,
   // Launcher, and WallPaper could be created by the factory.
   views::FocusManagerFactory::Install(new AshFocusManagerFactory);
 
   env_filter_ = new aura::shared::CompoundEventFilter;
   // Pass ownership of the filter to the Env.
   aura::Env::GetInstance()->SetEventFilter(env_filter_);
 
   aura::Env::GetInstance()->cursor_manager()->set_delegate(this);
 
@@ skipping 120 matching lines @@
   // widget will not paint when restoring after a browser crash.
   user_wallpaper_delegate_->InitializeWallpaper();
 
   power_button_controller_.reset(new PowerButtonController);
   AddShellObserver(power_button_controller_.get());
 
   display_controller_->InitSecondaryDisplays();
 
   if (initially_hide_cursor_)
     aura::Env::GetInstance()->cursor_manager()->ShowCursor(false);
+
+#if defined(USE_X11)
+  if (x11_host_window_manager_.get())
+    x11_host_window_manager_->Init();
+#endif
 }
 
 void Shell::AddEnvEventFilter(aura::EventFilter* filter) {
   env_filter_->AddFilter(filter);
 }
 
 void Shell::RemoveEnvEventFilter(aura::EventFilter* filter) {
   env_filter_->RemoveFilter(filter);
 }
 
@@ skipping 249 matching lines @@
 }
 
 void Shell::ShowCursor(bool visible) {
   RootWindowList root_windows = GetAllRootWindows();
   for (RootWindowList::iterator iter = root_windows.begin();
        iter != root_windows.end(); ++iter)
     (*iter)->ShowCursor(visible);
 }
 
 }  // namespace ash